Tips, guides, and insights about online tools for developers, designers, and everyday users.
Learn how to convert RGB to HEX and HEX to RGB color codes. Understand color formats used in CSS, HTML, and design tools — with a free online converter.
Learn what SSL certificates are, why they matter, and how to check any website's SSL status online — expiration dates, issuer, and certificate chain.
Learn what URL encoding (percent encoding) is, why %20 represents a space, and how to encode and decode URLs — with practical examples.
Compare MD5 and SHA256 hash algorithms: security, speed, output length, and when to use each. Learn why MD5 is obsolete for security and when SHA256 is the right choice.
Generate uncrackable passwords instantly with our free strong password generator. Learn what makes passwords secure — length, randomness, character variety — and why password managers protect your accounts.
Learn what Base64 encoding is, how it works, when to use it, and common pitfalls — with practical examples for web developers.
Learn the key differences between a JSON formatter and JSON validator, when to use each, and why both are essential tools for developers working with JSON data.
Discover the most useful free online tools for developers — from JSON formatters to hash generators — that save time and run entirely in your browser.
More articles coming soon. Check back for updates.